diff --git a/healthlink-his-server/healthlink-his-application/src/main/resources/db/migration/V42__bug745_fix_mr_sealing_medical_record_id.sql b/healthlink-his-server/healthlink-his-application/src/main/resources/db/migration/V42__bug745_fix_mr_sealing_medical_record_id.sql
new file mode 100644
index 000000000..04838066b
--- /dev/null
+++ b/healthlink-his-server/healthlink-his-application/src/main/resources/db/migration/V42__bug745_fix_mr_sealing_medical_record_id.sql
@@ -0,0 +1,3 @@
+-- Bug #745: mr_sealing.medical_record_id NOT NULL 导致前端不传该字段时 INSERT 报错
+-- 封存业务通过病案号手动录入，medicalRecordId 非必需，改为可空
+ALTER TABLE mr_sealing ALTER COLUMN medical_record_id DROP NOT NULL;